Stove.



PATENTED JUNE 30, .1903. 0. B. HILL.

STOVE.

APPLICATION FILED JUNE 4, 1902.

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UNITED STATES Patented June 30, 1903. PATENT OFFICE.

CHARLES E. HILL, or GOODISON, MICHIGAN.

STOVE.

SPECIFICATION forming part of Letters Patent N o. 732,186,,dated June 30, 1903. Application filed .l'une 4,1902. Serial No. 110,133. (No model-l zen of the United States, residing at Goodison,

in the county of Oakland, State of Michigan, have invented certain new and useful Improvementsin Stoves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to stoves; and it consists in the construction and arrangement of parts hereinafter fully set forth.

The objects of the invention are to provide a stove for burning soft coal of such construction as to prevent the escape of smoke and dust into the room and avoid discharging but a small amount of smoke from the chimney, obviating the filling of the pipe with soot, to provide a slowly-burning fire, and to produce a very even degree of heat with a comparatively small consumption of fuel.

The above objects are attained by the structure illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of a stove embodying my invention. Fig. 2 is a vertical section as on line 2 2 of'Fig. 1. Fig. 3 is a vertical transverse section as on line 3 3 of Fig. 2. Fig. 4-15 an enlarged transverse section through the drum of the stove and the rotary fire-pot to more clearly show the construction of parts.

As illustrated herein, the stove consists of a horizontal drum 1, supported upon a pyramidal base 2, in which is formed the ashpit 3, having the bottom plate 4, in which the supporting-legs are secured.

In the front end of the drum or body of the stove is a rotary fire-pot adapted to contain the fuel. Said fire-pot consists of two opposed circular disks 5, having apertures or perforations 6 therethrough and connected by suitable grate-bars 7 on opposite sides, which are secured at their opposite ends to said disks and form in conjunction therewith the fire-pot of the stove in which the fuel is confined. It will be seen that the opposed grates 7 are straight and do not conform to the contour of the drum of the stove. In the normal position of the fire-pot these grates stand vertically on opposed sides of the stove and hold the fuel from contact with the side walls of the stove. The circular disks 5 of the fire-pot are provided with trunnions 8, the rear one of which is journaledin a supporting-post 9, extending from the bottom of the stove, while the front trunnion is journaled in the front wall 10 of the stove and is square on its projecting endto receive a tie tachable crank 11, through the medium of which the fire-pot may be rotated. In the bottom of the drum of the stove is a sliding grate 12, upon which the fuel is supported and through which the ashes from the burned fuel are adapted to fall into the ash-pit. Said grate is made to slide, so that a large opening may be aiforded to allow the passage of slate and clinkers from the fire-pot,

Fuel is supplied to the fire-pot through the opening 13 in the top of the stove closed by the slides 14. When the fuel has burned down in the fire-pot, it is replenished by fresh coal introduced as described and the fire-pot is rotated onehalf turn, thereby bringing the fire and hot coals to the top and the fresh coal beneath. This partial rotation of the fire-pot also rattles the ashes from the fuel, leaving it free to burn. With the fire at the top of the fire-pot the gas and carbon liberated from the fresh coal through the action of the heat thereon must pass through the upper stratum of burningcoal as they are carried upward by the draft, which enters through the draft-openings in the ash-door 15, thereby burning the carbon and gases and preventing a discharge of smoke from the flue. The fire being located at the top of the fire-pot causes the fuel to burn slowly and evenly, thereby obviating the liability of excessive heat and a waste of fuel and maintaining the room at an even temperature.

At the rear of the fire-pot in the stove is a hot-air chamber 16, and communicating with said chamber is a pipe 18 to carry ofi the products of combustion.

The horizontal margins of the grate are provided with transverse plates 19, which extend in close proximity to the wall of the drum of the stove and are beveled at their edges, so as to serve as scoops that engage and carry upwardly the coal and ashes at the bottom of the fire-pot when said pot is rotated, the ashes falling through the side grate as the fire-pot is turned and the live coals being presented at the top.

The perforations in the end plates of the fire-pot allow the passage of air, so that combustion may be freely supported, and, if desired, additional air may be allowed to enter at the top by opening the slides 14, through which fuel is introduced, thereby assisting in burning the liberated gases.

It will be understood that, if desired, the stove may be so changed in shape as to permit of the burning of wood without departing from the spirit of my invention.

It will be observed that the grates 7 normally stand at the sides of the fire-pot and are therefore out of the extreme heat, which is usually at the bottom, obviating the warping of said grates. The front end plates or disks of the fire-pot should stand such distance from the front wall of the stove as to prevent contact therewith should the disk become warped.

If a very hot fire is desired, the fire-pot may be rotated several times, so as to free the ashes from the fuel and allow a more perfect circulation of air therethrough; but in all cases the grate should be arrested so as evident that the fire-pot may bemadeglobular instead of cylindrical and used in an upright stove having a round or spherical body.

Having thus fully set forth my invention,

what I claim as new, and desire to secure by Letters Patent, is-- 1. In a stove, the combination with'a cylindrical body, of a fire-pot mounted to rotate therein, said fire-pot having end plates and grated sections extending transversely between said plates, said grated sections being separated by openings for the entrance and discharge of fuel and having marginal pieces which extend into terminal contact with the inner wall of the cylindrical body while the central portion of said grated sections stands away from said wall, and means for rotating said fire-pot.

2. In a stove, the combination with a body comprising a drum, of a fire-pot mounted to rotate therein, said fire-pot consisting of cylindrical end plates and opposed grated sections extending between and connecting said plates, said grated sections being contiguous to the wall of the body at their extremities and divided by openings for the entrance and discharge of fuel, a grate in the wall of the stove below the fire-pot adapted in conjunction therewith to hold the fuel, and means for 

